BR112018011779A2 - scanning method and client device - Google Patents

scanning method and client device

Info

Publication number
BR112018011779A2
BR112018011779A2 BR112018011779A BR112018011779A BR112018011779A2 BR 112018011779 A2 BR112018011779 A2 BR 112018011779A2 BR 112018011779 A BR112018011779 A BR 112018011779A BR 112018011779 A BR112018011779 A BR 112018011779A BR 112018011779 A2 BR112018011779 A2 BR 112018011779A2
Authority
BR
Brazil
Prior art keywords
client device
operator
multimedia content
provisioning server
client devices
Prior art date
Application number
BR112018011779A
Other languages
Portuguese (pt)
Other versions
BR112018011779B1 (en
Inventor
Nicoulin André
Bieber Yann
Original Assignee
Nagravision Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nagravision Sa filed Critical Nagravision Sa
Publication of BR112018011779A2 publication Critical patent/BR112018011779A2/en
Publication of BR112018011779B1 publication Critical patent/BR112018011779B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835—Generation of protective data, e.g. certificates
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/0822—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using key encryption key
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/0825—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/083—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/088—Usage controlling of secret information, e.g. techniques for restricting cryptographic keys to pre-authorized uses, different access levels, validity of crypto-period, different key- or password length, or different strong and weak cryptographic algorithms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
    • H04L9/16—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms the keys or algorithms being changed during operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/633—Control signals issued by server directed to the network components or client
    • H04N21/6332—Control signals issued by server directed to the network components or client directed to client
    • H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
    • H04N21/63345—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key by transmitting keys
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Storage Device Security (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Abstract

um método para o recebimento com segurança de conteúdo multimídia por um dispositivo cliente operado por um ou mais operadores envolvendo um servidor de provisionamento dedicado de um provedor de segurança que gerencia os segredos simétricos usados pelos dispositivos de clientes e servidores de licenças de operadores. o servidor de provisionamento fornece ao dispositivo cliente uma ou mais gerações de segredos exclusivos de dispositivo específico do operador, que são então explorados pelos servidores de licenças dos vários operadores para fornecer licenças de modo que os dispositivos clientes autorizados possam consumir conteúdo multimídia protegido.A method for securely receiving multimedia content from a client device operated by one or more operators involving a dedicated provisioning server from a security provider that manages symmetric secrets used by client devices and operator license servers. The provisioning server provides the client device with one or more generations of operator-specific device-exclusive secrets, which are then exploited by the various operator license servers to provide licenses so that authorized client devices can consume protected multimedia content.

BR112018011779-0A 2015-12-23 2016-12-20 METHOD FOR EXPLORATION AND CLIENT DEVICE BR112018011779B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP15202609.2 2015-12-23
EP15202609 2015-12-23
PCT/EP2016/081822 WO2017108727A1 (en) 2015-12-23 2016-12-20 Secure provisioning, by a client device, cryptographic keys for exploiting services provided by an operator

Publications (2)

Publication Number Publication Date
BR112018011779A2 true BR112018011779A2 (en) 2018-12-04
BR112018011779B1 BR112018011779B1 (en) 2024-01-23

Family

ID=55027495

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112018011779-0A BR112018011779B1 (en) 2015-12-23 2016-12-20 METHOD FOR EXPLORATION AND CLIENT DEVICE

Country Status (6)

Country Link
US (4) US20190020933A1 (en)
EP (1) EP3369206A1 (en)
CN (1) CN108476134B (en)
BR (1) BR112018011779B1 (en)
SG (1) SG11201804616VA (en)
WO (1) WO2017108727A1 (en)

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KR102052489B1 (en) * 2017-06-23 2019-12-05 미쓰비시덴키 가부시키가이샤 Ladder program unauthorized-use prevention system, ladder program unauthorized-use prevention method, and engineering tool
EP3506552A1 (en) 2017-12-29 2019-07-03 Nagravision S.A. Secure installation of application keys
US11991273B2 (en) 2018-09-04 2024-05-21 International Business Machines Corporation Storage device key management for encrypted host data
US11038671B2 (en) 2018-09-04 2021-06-15 International Business Machines Corporation Shared key processing by a storage device to secure links
US11038698B2 (en) * 2018-09-04 2021-06-15 International Business Machines Corporation Securing a path at a selected node
US11088829B2 (en) 2018-09-04 2021-08-10 International Business Machines Corporation Securing a path at a node
US11025413B2 (en) 2018-09-04 2021-06-01 International Business Machines Corporation Securing a storage network using key server authentication
CN116132163B (en) * 2023-02-10 2024-08-02 南京百敖软件有限公司 Method for realizing device limiting local area network fence by using DHCP protocol

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Also Published As

Publication number Publication date
US11785315B2 (en) 2023-10-10
SG11201804616VA (en) 2018-07-30
US20200404392A1 (en) 2020-12-24
WO2017108727A1 (en) 2017-06-29
US11575977B2 (en) 2023-02-07
CN108476134A (en) 2018-08-31
BR112018011779B1 (en) 2024-01-23
US20240073490A1 (en) 2024-02-29
US20190020933A1 (en) 2019-01-17
US20230033476A1 (en) 2023-02-02
CN108476134B (en) 2021-03-12
EP3369206A1 (en) 2018-09-05

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Legal Events

Date Code Title Description
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 20/12/2016, OBSERVADAS AS CONDICOES LEGAIS